US5097169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spool connection for brushless alternator
Assignee: Mitsubishi Electric Corp
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Filing: 1989-11-08
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Granted: 1992-03-17
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Expires: 2009-11-08
Abstract
Abstract A brushless alternator for a vehicle comprising a field coil holding device formed by mounting a field coil winding spool directly on a field core using a bonding agent thus eliminating the need for a metallic cylindrical spool holder which requires precise machining in order to engage with the field core for welding. With this arrangement, a simple and inexpensive field coil holding device eliminates former precise machining. In addition, a field coil can be wound around the field coil winding spool in advance, before bonding to the field core.
Inventors
- 👤 Sumio Fukushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:32
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K19/00; H02K19/16; H02K19/22; H02K19/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A brushless alternator for a vehicle comprising a field coil holder, wherein the field core is provided with grooves at the periphery thereof and said field coil holder is provided with flange portions at the outer periphery thereof that conform to said grooves of said field core for constituting a structure to take out the lead wires from the field coil.
Claim 2
Dependent Claim
61 words
A brushless alternator for a vehicle comprising a field coil holder, wherein the field core is provided with grooves at the periphery thereof and said field coil holder is provided with flange portions at the outer periphery thereof that conform to said grooves of said field core for constituting a structure to take out the lead wires from the field coil.
Claim 3
Dependent Claim
78 words
A brushless alternator for a vehicle comprising a field coil holder, wherein said field coil holder comprises a field coil winding spool securely mounted directly on a field core by bonding; in which the field core is provided with grooves at the outer periphery thereof for accepting lead wires of a field coil and the field coil winding spool is provided with flange portions that conform to the grooves at the outer periphery thereof for covering the grooves.
Claim 4
Dependent Claim
78 words
A brushless alternator for a vehicle comprising a field coil holder, wherein said field coil holder comprises a field coil winding spool securely mounted directly on a field core by bonding; in which the field core is provided with grooves at the outer periphery thereof for accepting lead wires of a field coil and the field coil winding spool is provided with flange portions that conform to the grooves at the outer periphery thereof for covering the grooves.
Claim 5
Dependent Claim
48 words
A brushless alternator for a vehicle in accordance with claim 2, in which the field coil winding spool is further provided with through holes at the inner periphery thereof which correspond to an underneath side of the flanges for guiding out the lead wires from the field coil.
Claim 6
Dependent Claim
51 words
A brushless alternator for a vehicle comprising a field coil holder, wherein said field coil holder comprises a field coil winding spool securely mounted directly on a field core by bonding; in which the field core is provided with through holes for guiding out the lead wires from the field coil.
Claim 7
Dependent Claim
51 words
A brushless alternator for a vehicle comprising a field coil holder, wherein said field coil holder comprises a field coil winding spool securely mounted directly on a field core by bonding; in which the field core is provided with through holes for guiding out the lead wires from the field coil.
Claim 8
Dependent Claim
43 words
A brushless alternator for a vehicle comprising a field coil holder, wherein said field coil holder comprises a field coil winding spool securely mounted directly on a field core by bonding; in which the field coil winding spool is made of insulating material.
Claim 9
Dependent Claim
43 words
A brushless alternator for a vehicle comprising a field coil holder, wherein said field coil holder comprises a field coil winding spool securely mounted directly on a field core by bonding; in which the field coil winding spool is made of insulating material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |